package com.hyy.netty.c1;

import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.codec.string.StringEncoder;

import java.net.InetSocketAddress;

public class HelloClient {
    public static void main(String[] args) throws InterruptedException {
        //1、启动类
        new Bootstrap()
                //2、添加 EventLoop
                .group(new NioEventLoopGroup())
                //3、选择客户端的channel的实现
                .channel(NioSocketChannel.class)
                //4、添加处理器
                .handler(new ChannelInitializer<NioSocketChannel>() {
                            @Override //在连接建立后被调用
                            protected void initChannel(NioSocketChannel ch) throws Exception {
                                ch.pipeline().addLast(new StringEncoder());

                            }
                        })
                //5、连接到服务器
                .connect(new InetSocketAddress("localhost",8080))
                .sync()//阻塞方法，直到连接建立
                .channel()//代表连接对象
                //6、向服务器发送数据
                .writeAndFlush("hello world");
    }
}
